Licensed · Bonded · Insured · CCB #187834 Mon-Fri 7am-5pm · Weekends by appt. Milwaukie · Portland · Happy Valley
Lake Oswego, OR

Lake Oswego HVAC: Heating and Cooling for Hillside Homes

Furnace, AC and heat pump service for Lake Oswego homes, from older houses near Oswego Lake to multi-level hillside homes in Mountain Park and Westlake.

HVAC Service for Lake Oswego's Multi-Level and Older Homes

Lake Oswego covers a lot of ground and a lot of elevation. First Addition and the streets around Oswego Lake hold some of the city's older homes, while Mountain Park, Palisades and Westlake are full of multi-level houses built into hillsides.

Hillside homes put the furnace on the bottom floor and the bedrooms two or three levels up. One system serving all of it rarely keeps every level comfortable without zoning or careful duct balancing.

Our Milwaukie headquarters at 14913 SE Kellogg Ave is about 20 minutes from most of Lake Oswego by way of the Sellwood Bridge and Highway 43, or I-205 for the south side of town.

Lake Oswego HVAC Services

Zoning a Three-Level Hillside Home

In a home that steps down a slope, the top floor gains heat from the sun and from the floors below. The bottom floor sits partly below grade and stays cool. A single thermostat cannot satisfy both.

We look at three options. A zoning panel with motorized dampers on the existing ducts, a second system dedicated to the upper level, or a ductless head in the rooms the main system cannot reach. The load calculation and the duct layout decide which one makes sense.

Schedule Service in Lake Oswego

We cover Lake Grove, First Addition, Mountain Park, Palisades, Westlake, Uplands and Forest Highlands. Call or schedule a visit online.

Questions

Frequently Asked Questions

Or just call (503) 698-5588

Can you even out the temperature between floors in my Lake Oswego home?

Usually. Depending on the duct layout, we use zoning dampers, a second system for the upper level or a ductless unit for the rooms the main system cannot reach. We test airflow first so the fix matches the cause.

How long does it take a technician to reach Lake Oswego?

Our Milwaukie headquarters is about 20 minutes from most Lake Oswego neighborhoods, via the Sellwood Bridge and Highway 43 or via I-205.

Can you keep a new outdoor unit quiet for close neighbors?

Yes. We choose variable-speed outdoor units, set them on isolation pads and place them away from bedroom windows where the lot allows. We can provide the manufacturer sound ratings for your HOA.

Reviews

Reviews from Portland homeowners

A few recent Google reviews from homeowners across the metro. We don't edit them.

BM
Brad M.Milwaukie office
Phil did a great job of carefully examining all the components of our almost 20 year old HVAC system. He took detailed photos and videos to show me the status. And he didn’t try to sell me anything else! Great experience 10/10
System inspection
GM
George M.Happy Valley office
Efficiency Heating and Cooling came out to our home to do general maintenance on our furnace and heat pump, and also level our heat pump. Tristan was our technician. His work was efficient and thorough. He explained everything he did and told me what Efficiency H&C had to offering the way of maintenance programs. I am very happy with the services we received.
Furnace & heat pump maintenance
AM
Alyssa M.Portland office
This was my first time working with this company, and it was an amazing experience! Wayne was super personable, and explained things thoroughly and transparently. The cost was reasonable and that was with the maintenance membership program we joined. Highly recommend this business!
Maintenance membership
JF
Jill F.Milwaukie office
I definitely recommend Efficiency! On this year's hottest day my AC quit working and Efficiency was able to send a technician right out. He fixed it quickly (luckily it was not a major issue) and now I'm basking in cool air. Thank you so much!
AC repair
MM
Mike M.Happy Valley office
Tristan was very thorough with diagnosing the issues with my system and walked me through them so I could better understand my options for repair. We’ve had a few HVAC techs look at our system over the last decade or so, and Tristan was by far the best.
System diagnosis
JB
Jencina B.Portland office
Jason came out for an estimate for a heat pump for my house. He listened to what I was looking for function-wise, evaluated the property, gave me a quote with 4 options, and explained the pros and cons of each. He was thorough, friendly, and not at all condescending (women, if you know, you know). Very professional.
Heat pump estimate
CG
Carma G.Milwaukie office
I bought a furnace from these folks over 10 years ago and was very impressed with their work. I've had them tune up my furnace every year since and it's still the great quality and friendly service. They are dependable and knowledgeable every time I deal with them. I highly recommend them.
Furnace install & tune-ups
SW
Serena W.Happy Valley office
Efficiency Heating and Cooling is a great company to work with. They gave me multiple options based on personal wants/needs with my 100+ year old house and were patient helping educate me and navigate to a decision. They were prompt, scheduling was easy, very professional, knowledgeable, and walked through with me how my system works once the job was complete. Couldn’t be happier from beginning to end and would heartily recommend them!
100+ year old home
JC
Joe C.Portland office
Called so many companies to find someone who did duct work beyond cleaning (I had a leak in the duct) and.so glad I got a hold of these guys. Professional, fast, and thorough. Great all around!
Duct leak repair
LF
Lauren F.Milwaukie office
Hire them immediately! Super fair pricing, great service. My Technician, Tristian was communicative and thorough. I tried hiring another company prior and they had me pre-pay, after tons of no shows and shoddy work followed by more no shows I demanded my money back and happily gave it to Efficiency Heating and Cooling.
HVAC service
CW
Carl W.Happy Valley office
Tristan was very professional. He was on time and explained everything thoroughly. I appreciated the no pressure conversation of future work that could be done with my heating system.
Heating system service
AM
AJ M.Portland office
What a great experience with Efficiency. From the estimate process to installation, they made everything seamless and easy. When we hit an unexpected snag during installation, they kept us well informed about what was going on how it might affect the timeline. They got everything done and the system is working great!
System installation
Ready when you are

Call us, or send a request and we'll call you.

You'll talk to someone in our Milwaukie office, not a call center. We'll get a tech out and give you the price before any work starts.

(503) 698-5588

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